Mazzitti & Sullivan Counseling Leadership

Nedson Campbell, MD, Medical Director
Dr. Campbell grew up in the suburbs of Philadelphia with his family. He attended Temple University where he studied psychology, and then went on to Temple University School of Medicine where he studied to become a psychiatrist. He proceeded to his psychiatry residency at Yale University, and he completed his formal medical training at Yale while attending their addictions psychiatry fellowship. Dr. Campbell returned to the Philly area to work at Mazzitti & Sullivan and to lay roots in the Philadelphia area that he loves so dearly. In his off hours, he enjoys spending time with friends and family, as well as travelling to far reaching places whenever he gets the chance.


Hannah Marley, MS, Vice President of Operations
Hannah began her career at The Light Program in 2011 as an addictions counselor where she helped adolescents and their families navigate complex issues with substance use. In 2013, she became the director of adolescent services and then was quickly promoted to regional director of operations in 2014. Hannah transitioned into the vice president of operations role in 2019, where she has been integral to the success of The Light Program over the past several years.

Hannah is deeply committed to building mental health and substance abuse programming that is impactful to the communities that The Light Program serves. She earned a master’s degree in counseling and human relations from Villanova University, and her nuanced approach to operational leadership has been informed by over 11 years of experience across the full spectrum of behavioral healthcare services. Hannah enjoys spending time with her husband and four children, as well as traveling to the New Jersey shore and the Pocono Mountains.


Jedediah Baker, LCSW, Executive Director
Jedediah has been with Pyramid Healthcare since 2013, working as a counselor and clinical supervisor, and is currently serving as the executive director of Mazzitti & Sullivan Counseling Services since 2019. Jedediah is a Harrisburg native and proud to work in the communities Mazzitti & Sullivan Counseling serves. He earned his bachelor’s degree from Saint Francis University and his Masters of Social Work from Widener University. Jedediah is passionate about influencing a culture that takes a strength-based approach to therapy, building on our clients’ existing strengths and resiliency.


Michelle Watson, Psychiatric Practice Coordinator
Michelle is a Southeastern PA native. She grew up in Blue Bell and graduated from Delaware Valley University with a bachelor’s degree in large animal science. While her career path took her into human science work, she still remains connected to animals through horseback riding and a love for being outdoors. Michelle has a strong background in patient care, from managing primary care offices, ENT specialists and most recently a chiropractic office in Center City. These combined experiences have developed the skill sets to support multiple operations within Pyramid Healthcare, including 15 outpatient locations, one residential location and Pyramid Online Counseling.


Heather Butler, Director of Outpatient Admissions and Benefits Verification
Heather joined Pyramid Healthcare in 2015 as intake supervisor. As the company grew, so did the call center and within a few short years Heather was promoted to assistant director of admissions and then to director of admissions and benefits verification. Heather graduated from the University of Phoenix with a bachelor’s degree in healthcare administration and is currently enrolled at Capella University for her master’s in healthcare administration and management. Heather is a mother of three young adults and three fur babies and in her free time she loves reading, crafting and planning her next travel adventure.


Kirsten A. Baehr, MSW LSW, Regional Quality Manager
Kirsten started with the Pyramid Healthcare organization in 2015, where she was the substance use counselor as well as a mental health counselor for the Waynesboro outpatient facility. She also served as the clinical supervisor for both Chambersburg and Waynesboro outpatient facilities. She received her Bachelor of Arts in Psychology, as well as her Masters of Social Work from Shippensburg University.

While working in direct care, Kirsten’s work focused on substance use disorders, mood disorders, anxiety disorders, trauma-informed care and SOGI. She has been in the field since 2008, where she has worked in residential substance use, inpatient psych, as well as community co-occurring case management. When not at work, Kirsten enjoys lifting, reading, baking and exploring the world with her little one, Vince.


Laura Schuster, MPA, Director of Marketing
Laura joined Mazzitti & Sullivan’s sister companies, The Light Program and Rehab After Work, in 2018 as a program coordinator. She then transitioned into the role of psychiatric practice coordinator working closely with our providers and medical director. In late 2020, Laura transitioned into the role of the community liaison for The Light Program, and was soon promoted to director of marketing for Mazzitti & Sullivan Counseling, serving clients, families and loved ones who are seeking behavioral outpatient treatment. Laura has worked in the healthcare field for over nine years, and has had experience working with individuals who may be struggling with their mental health, or a substance use disorder, and assisting them in navigating their road to recovery. Her passion is to help others find accessible treatment through our services and working in our communities to be a reliable referral partner. Laura received her bachelor’s degree in recreational therapy from Temple University and her master’s degree in public administration from West Chester University. She is a native of the Philadelphia area and grew up in the surrounding suburb of Delaware County, and currently lives there with her husband and two young sons.


Jessica Kostic, Community Liaison
Jessica joined the Pyramid Healthcare family in 2005 working as the admissions coordinator for the adolescent residential program in Bucks County. While working in admissions, her passion was to provide support and education to clients, families and community partners on treatment options and services. In 2013, Jessica transitioned into the role of Community Liaison covering multiple counties in Pennsylvania for Pyramid. Currently she is supporting Pyramid Healthcare residential programs, Mazzitti & Sullivan Counseling and Rehab After Work outpatient programs in the capital region. Offering the full continuum of care to the community has been, and continues to be, extremely rewarding to her.


Jeffrey Schiele, Executive Assistant
Jeffery graduated cum laude from Temple University with a degree in geography and urban studies and certificate in geographic information systems (GIS). His capstone study examined how GPS technology has affected the ways in which LGBTQIA+ individuals navigate questions around identity and community. Jeffery joined the Mazzitti & Sullivan team in July 2018 as an administrative office coordinator and quickly transitioned into the executive assistant position in November 2019. In his current role, he supports the vice president of operations and clinical operations team with the many administrative pieces relevant to Mazzitti & Sullivan’s outpatient programming. In his spare time, Jeffery enjoys running, sewing, crochet, DIY and contributing to community organizations.


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